It 's estimated to extend 11 earth diameters end to end .

估计从头到尾它蔓延了约有11个地球直径的范围。

These aging starshave expanded to many times their original diameters and cooled .

这些古老恒星的直径较最初扩大了许多倍，并且已经冷却。

Average mature redwoods stand between 200 to 240 feet tall and have diameters of 10 to 15 feet .

成熟红杉平均200至240英尺高，直径为10到15英尺。

The researchers could move particles to a target located 0.5 meters away with an accuracy of 10 micrometers , which they demonstrated using particles with diameters between 60 micrometers and 100 micrometers .

研究人员在演示移动直径60微米和100微米的微粒时可以将微粒移动到在0.5米外的一个目标处，误差在10微米内。

To even begin to address the mystery of what lies within these dying stars , scientists must accurately and precisely measure their diameters and masses .

科学家们要想揭开这些垂死恒星的内部之谜，首先要必须精确地测量它们的直径和质量。